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Hemangiopericytoma: Characteristic Features Observed by Magnetic Resonance Imaging and Angiography
Author(s) -
Kato Naoko,
Kato Sadatoshi,
Ueno Hiroo
Publication year - 1990
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/j.1346-8138.1990.tb03014.x
Subject(s) - hemangiopericytoma , magnetic resonance imaging , angiography , medicine , stain , soft tissue , radiology , magnetic resonance angiography , pathology , staining
Hemangiopericytoma is a rare vascular tumor which may originate wherever there are capillaries. We report a case of this tumor occurring in a 79‐year‐old Japanese man, which originated from the subcutaneous tissues of the left upper arm and reached a size of 6 × 5 × 4 cm. Histopathological and electron microscopical findings were compatible with those of benign‐type hemangiopericytoma. Magnetic resonance imaging showed the most intense signal on proton density images. Angiography showed the characteristic tumor feeder artery forming a pedicle which entered the tumor and branched radially and a dense, uniform, well‐demarcated, oval tumor stain. These images were helpful in performing proper operative treatment without noteworthy bleeding. These modern modalities are excellent non‐invasive diagnostic procedures for the vascular tumors of soft tissues in dermatology.